Seat construction



H. CAMPBELL ET AL 2,121,856

SEAT CONSTRUCTION June 28, 1938.

' Filed April 15, 1935 a2. 3 /3 ez 5 r V i r-il w P11 win- ""F' i" PM INVENTORS HARRY A. G'AMPBELL. AND BY GEORGF V/NETTE.

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linvention relates Patente'd June 28,

Park. M1

;cushion.un'its. r vi-More specifically the invention relates --particuilarlyzzto improvements Jim cushion units 3 of: the

characteridisciosed insa copending application: Se-

5 with the normal action of the latter.

. embodied' toiadvantage 'tional' constructions" V One'of the main objects of the invention is to provide in a resilient cushion unit, improved means for yieldably tying together the adjacent coil springs or other resilient elements of adjacent rows of said resilient elements.

Anotherpobject of the invention is to provide tying means of this character which is normally contracted laterally and adapted to expand so as tofaccommodate movement of one row of springs or movement of someof the springs of one row relative to the springs of the adjacent row.

A further object of the invention is to provide yieldable tying means of this kind which is par- I ticularly adapted to accommodate ;movement of the springs of a cushion unit vwhich occurs when r such unit is provided with flexible braces of the character set forth in the foregoing co-pending application. 1 a

A still further object of the invention is to provide, in a cushion 'unit having flexible braces which normally tend to rotate an edge portion of the unit about an axis during normal deflection of the'unit, improved means for yieldably tying adjacent rows of the'resilient members of the unit 7 together which will accommodate such rotation 1 of the edge portion of the unit without interfering I An illustrative embodiment of the vinvention is shown in the accompanying drawing, in which:

Fig. 1 is a vertical sectional ,view of a vehicle seat including a seat back portion and a seat proper both of which are provided with resilient cushion units embodying the invention. I

Fig. 2 is a plan view showing the resilient cushion .unit of the seat back structure illustrated in Fig. 1, as it appears when viewedfrom the line 2-4, of Fig. 1.

' Fig. 3 is a fragmentary; vertical sectional view taken'on the line 3-3 of Fig. 2. v

'Fig. 4 is a fragmentary, vertical sectional view takenpn the line 4 4 of Fig. 2.

' In the form of the invention illustrated in the l drawing, the improved resilient cushion unit includes a pair of substantially rectangular frame structures I0 and'l I, each of which comprises an j outer border member .or wire having longitudinal sides 12 and I3 and lateral extremities H and iqje attaand earns. vintages.

-' improved resilient tended longitudinal deflection and during normal Chrysler .Gornoration e I 5 --respectively. The frame structure -l' 'in 'the' illustration shown,--is "mountedon ar'igid whereas the -frame- -"structure- 'l fl comprisesi wire tudijnal-si'des l3 of;the frarne H are cleats l wane '1 "desired,i-be =providedpnthe qi far eleats may;

A plurality of rows of coil springs ll aredisposed between the frame structures In and II and the ends of the springs on at least one side of the unit are held in predetermined spaced relationship by the cleats l6. In the illustration 7 shown, the fixed ends of the springs are secured to the frame structure ll and the ends of the springs on the opposite side of the cushion unit are'yieldably connected together by longitudinal- 1y extending tying strips l9 preferably formed of fabric and having beaded longitudinal edges in which cords 20 are disposed. The oppositeedge portion of the tying strips l9 are fixed to corresponding coil springsof adjacent rows thereof by Wire clips or eyes 2|. portions of the tying'strips l9 are drawn together between the points of attachment thereof to the springs I! in the manner illustrated iriFig. 4 and they are held in adjacent relationship by metal clips .21 so as to retain the portions of the tying strips between corresponding springs of adjacent rows in laterally contracted relationship. By-

The longitudinal edge V virtue of this structure the tying strips H are ,7

rendered sufficiently expansible to accommodate limited, relative, separatory movement of thew coil springs of adjacentrows. 1

The provision of such limited, relative, separatory movement of the springs of adjacent rows thereof is particularly advantageous in resil: ient cushion structures of the character which I are provided with flexible bracinglinkages 22 of the character illustrated in Figs. 1 and 2. Each brace 22 includes a pair 'of converging levers 23 having their adjacent ends pivotally secured together and pivotally attached to selectedcoilf springs I! by a clamping member comprising a strip of sheet metal of U-shaped crosssection which is crimped on intermediate turns of the coil springs 11 as illustrated in Figs. 1 and 2. The outer ends of the levers 23 of each flexible brace are pivotally attached to the border wire I2 of the frame I0 and to the corresponding border member I 3 of the frame Il. "These braces serve to hold the respective border wires with. which they are associated against uninoperation of the cushion unit they permit free springs adjacent the frame I!) suflicient to ac-'.

commodate this arcuate movement of the border portion.

While in the illustration shown in the drawing only one side of the spring unit is provided I with expansible tying strips l9 it should be understood that in embodiments of the invention in certain articles of upholstered furniture as well as bed springs and mattresses, both sides of, the cushion unit may be'substantially identically constructed to correspond with the flexible V tying structure illustrated on only one side of the cushion unit shown in the drawing. 7

Although butone specific embodiment of the invention is herein shown and described, it will be understood that various-changes in the size,

shape and arrangement of parts may be made without departing from the spirit of the invention, and it is not intended to limit its scope other than by the terms of the appended claims.

We claim: V

1. A resilient cushiorb unit including spaced frame structures, a plurality'of adjacent rows of resilientmembers interposed between said frame structures and flexible tyingl strips between adjacent rows of resilient members having opposite edge portions secured to corresponding resilient members of adjacent rows and said opposite edge portions of said tying strips being secured together intermediate their points of attachment to said resilient members.

2. A resilient cushion unit including a row of resilient'members, a second row of resilient members positioned adjacent the first mentioned row of resilient members and spaced, therefrom, a fabric tying strip arranged between said rows of'resilient members having opposite edge pora:

tions secured .to the adjacent portions of the resilient members respectively, laterally adjacent parts of said strip being folded together intermediate its points of attachment to said resilient members, and means permanently securing 'portions of the edges of said folded parts together.

HARRY A. CAMPBELL.

GEORGE H. VINE'ITE. 

